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Recycle text nodes in lines

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This commit is contained in:
Antonio Scandurra
2015-10-06 10:18:05 +02:00
parent c1e56322aa
commit dede68011f
1 changed files with 31 additions and 25 deletions
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56
src/lines-tile-component.coffee
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@@ -151,21 +151,21 @@ class LinesTileComponent
indentGuide = @domElementPool.buildElement("span", "indent-guide")
for j in [0...tabLength]
if invisible = endOfLineInvisibles?[invisibleIndex++]
indentGuide.appendChild(
@domElementPool.buildElement("span", "invisible-character", invisible)
)
invisibleSpan = @domElementPool.buildElement("span", "invisible-character")
invisibleSpan.appendChild(@domElementPool.buildText(invisible))
indentGuide.appendChild(invisibleSpan)
else
indentGuide.insertAdjacentText("beforeend", " ")
indentGuide.appendChild(@domElementPool.buildText(" "))
lineNode.appendChild(indentGuide)
while invisibleIndex < endOfLineInvisibles?.length
invisible = endOfLineInvisibles[invisibleIndex++]
lineNode.appendChild(
@domElementPool.buildElement("span", "invisible-character", invisible)
)
invisibleSpan = @domElementPool.buildElement("span", "invisible-character")
invisibleSpan.appendChild(@domElementPool.buildText(invisible))
lineNode.appendChild(invisibleSpan)
else
unless @appendEndOfLineNodes(id, lineNode)
lineNode.textContent = "\u00a0"
lineNode.appendChild(@domElementPool.buildText("\u00a0"))
setLineInnerNodes: (id, lineNode) ->
lineState = @newTileState.lines[id]
@@ -213,11 +213,12 @@ class LinesTileComponent
appendTokenNodes: (tokenText, isHardTab, firstNonWhitespaceIndex, firstTrailingWhitespaceIndex, hasIndentGuide, hasInvisibleCharacters, scopeNode) ->
if isHardTab
hardTabNode = @domElementPool.buildElement("span", "hard-tab", tokenText)
hardTabNode = @domElementPool.buildElement("span", "hard-tab")
hardTabNode.classList.add("leading-whitespace") if firstNonWhitespaceIndex?
hardTabNode.classList.add("trailing-whitespace") if firstTrailingWhitespaceIndex?
hardTabNode.classList.add("indent-guide") if hasIndentGuide
hardTabNode.classList.add("invisible-character") if hasInvisibleCharacters
hardTabNode.appendChild(@domElementPool.buildText(tokenText))
scopeNode.appendChild(hardTabNode)
else
@@ -228,26 +229,24 @@ class LinesTileComponent
trailingWhitespaceNode = null
if firstNonWhitespaceIndex?
leadingWhitespaceNode = @domElementPool.buildElement(
"span",
"leading-whitespace",
tokenText.substring(0, firstNonWhitespaceIndex)
)
leadingWhitespaceNode = @domElementPool.buildElement("span", "leading-whitespace")
leadingWhitespaceNode.classList.add("indent-guide") if hasIndentGuide
leadingWhitespaceNode.classList.add("invisible-character") if hasInvisibleCharacters
leadingWhitespaceNode.appendChild(
@domElementPool.buildText(tokenText.substring(0, firstNonWhitespaceIndex))
)
startIndex = firstNonWhitespaceIndex
if firstTrailingWhitespaceIndex?
tokenIsOnlyWhitespace = firstTrailingWhitespaceIndex is 0
trailingWhitespaceNode = @domElementPool.buildElement(
"span",
"trailing-whitespace",
tokenText.substring(firstTrailingWhitespaceIndex)
)
trailingWhitespaceNode = @domElementPool.buildElement("span", "trailing-whitespace")
trailingWhitespaceNode.classList.add("indent-guide") if hasIndentGuide and not firstNonWhitespaceIndex? and tokenIsOnlyWhitespace
trailingWhitespaceNode.classList.add("invisible-character") if hasInvisibleCharacters
trailingWhitespaceNode.appendChild(
@domElementPool.buildText(tokenText.substring(firstTrailingWhitespaceIndex))
)
endIndex = firstTrailingWhitespaceIndex
@@ -255,11 +254,18 @@ class LinesTileComponent
if tokenText.length > MaxTokenLength
while startIndex < endIndex
text = @sliceText(tokenText, startIndex, startIndex + MaxTokenLength)
scopeNode.appendChild(@domElementPool.buildElement("span", null, text))
textNode = @domElementPool.buildText(
@sliceText(tokenText, startIndex, startIndex + MaxTokenLength)
)
textSpan = @domElementPool.buildElement("span")
textSpan.appendChild(textNode)
scopeNode.appendChild(textSpan)
startIndex += MaxTokenLength
else
scopeNode.insertAdjacentText("beforeend", @sliceText(tokenText, startIndex, endIndex))
scopeNode.appendChild(
@domElementPool.buildText(@sliceText(tokenText, startIndex, endIndex))
)
scopeNode.appendChild(trailingWhitespaceNode) if trailingWhitespaceNode?
@@ -275,9 +281,9 @@ class LinesTileComponent
if endOfLineInvisibles?
for invisible in endOfLineInvisibles
hasInvisibles = true
lineNode.appendChild(
@domElementPool.buildElement("span", "invisible-character", invisible)
)
invisibleSpan = @domElementPool.buildElement("span", "invisible-character")
invisibleSpan.appendChild(@domElementPool.buildText(invisible))
lineNode.appendChild(invisibleSpan)
hasInvisibles